Courtside: get paid on time

by Kianna Bartell

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Oct 15, 2026 Finance & Accounting

client management gmail integration invoice-tracking payment-reminders

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If you invoice clients by email, you probably know the problem: an invoice goes out, nobody pays, and you only notice weeks later. Then you have to write the "just following up on this" email, which never gets less awkward. So I built Courtside. You sign in with Gmail and it: goes through the last 90 days of your sent mail and finds invoices that were never paid, with a total of what you're owed drafts a reminder in the same email thread, in your own words, and you decide whether i...